[sdiy] lookup table as expo converter

[Magnus Danielson]

From: synth1 at airmail.net
Subject: Re: [sdiy] lookup table as expo converter
Date: Mon, 24 May 2004 17:21:48 -0500 (CDT)
Message-ID: <58086.66.6.206.26.1085437308.squirrel at webmail.airmail.net>

> > On Monday 24 May 2004 20:24, Paul Schreiber wrote:
> >> MOTM-520 Cloud VCO does use a look-up table for the expo converter
> >> (16-bit, 64K entries!)
> >
> > This seems wasteful unless you do something else (like nonlinearity
> > correction) with that lookup table at the same time.
> 
> No extra points for being clever :)
> 
> The uP I'm using has 128KB of FLASH, so 1/2 is the lookup table. The
> actual code that runs the NCOs is only about 14K.

The actual NCO is just a handfull of bytes if you really microscope it, right?

;O)

Cheers,
Magnus - another NCO lover - even daytime!